Home / 4,320.85-6,480.06-1,200.10

Finding the Fourth Proportional to 4,320.85, 6,480.06 and 1,200.10

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Solution

The fourth proportional to 4,320.85, 6,480.06 and 1,200.10 is: 1,799.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320.85 : 6,480.06 = 1,200.10 : x
  2. Step 2: Convert to fraction form
    4,320.85/6,480.06 = 1,200.10/x
  3. Step 3: Cross multiply
    4,320.85x = 6,480.06 × 1,200.10
  4. Step 4: Simplify right side
    4,320.85x = 7,776,720.01
  5. Step 5: Solve for x
    x = 7,776,720.01/4,320.85
  6. Step 6: Final answer
    x = 1,799.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.